Means for placing weights on molds.



H. E. ASBURY.

MEANS FOR PLACING WEIGHTS:

3N MOLDS.

APPLICATION FILED MAY 2s,

Patented J an. 28, 1913.

H. E. ASBURY.

MEANS FOR PLACING WEIGHTS ON MOLDS.

APPLICATION PXLED MAY 29,1911

Patented J an. 28, 1913.

2 SHEETS-SHEBT 2.

UNITED STATES PATENT onnion.

HARRY E. ASBUBY, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE ENTER-PRISE MANUFACTURING COMPANY OF PENNSYLVANIA, OF PHILADELPHIA. PENN-SYLVANIA. A CORTEORATION OF PENNSYLVANIA.

MEANS FOR PLACING WEIGHTS ON MOLDS.

i Specification of Letters Patent.

Patented Jan. 28; 191 3.

Application filed m 29, 911/ Serial No. 629,994.

T 0 all whom it may concern:

Be it known that I, HARRY E. ASBURY, a-citizen of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Means for Placing W'cights on Molds, of which thefollowing is a specification.

My invention relates to certain improve ments in casting apparatus inwhich the flasks travel from the molding machine to and past the pouringladle. In the particular type of machine to which my invention relatesthe flasks are returned to the molding machine after the casting hasbeen discharged.

The invention is particularly adapted for use in casting apparatus inwhich sand, or equivalent material, is used to form the mold and whenmaterial of this nature is used it is essential that the weights shouldbe located upon the sand within the flasks during the pouring operationand the object of my invention is to provide mechanism for plac ing theweights on the sand in the flasks prior to the pouring operation and topro vide means for removing the weights from the sand in the flasksafter the metal has been poured and prior to the discharge of the sandand the casting from the flask.

1n the accompanying drawings :--F igure 1, is a plan view of a castingapparatus il1us-' trating my invention; Fig. 2, is aside view; Fig. l,is a plan view, drawn to an enlarged scale. of part of the apparatusillustrated in Fig; 1; Fig. his a transverse, sectional view on the linea-a, Fig. 3; Fig. 5, is an end view looking in the direction of thearrow, Fig. 4; and Fig. 6, is a perspective view of one of the flaskweights.

Referring to the drawings, 1 is an endless conveyer made of a series oftrucks 2 connected together by links. Each truck has a platform 3 whichsupports the bottom board of the flask. 4 are the axles, which aremounted in suitable hearings in each end of each truck and these axlesare provided with wheels 5, which travel on rails 6, as illustrated inFig. 4. These trucks travel only in a vertical plane and in thedirection indicated by the arrow 12, Fig. 2. The sole object of thisconveyer is to support the.

flasks when filled with sand and during the process of casting. 8 is ahorizontal conveyer, one run of which travels over the verticallyarranged conveyer 1. These two conveyers are driven at the same speedand travel in unison. The horizontal conveyer 8 is made up of a seriesof flask-carrying rings 9, connected at one edge by links 10; the linksbeing free to swivel so that they will readily pass around the curves ateach end and will accommodate themselves to any unevenness in thesupporting tracks. The flask-carrying rings, in the present instance, donot act until after the mold is poured and the bottom board dropped,prior to the discharge of the sand and castings; the flask, droppinginto the carrying ring, is supported by said carrying-ring until its return to the molding machine. The conveyer 1 passes around sprocketwheels? and one of; these sprocket wheels is the driving wheel. Theconveyer 8 passes around the sprocket wheels 11 and one of these wheelsis the driving wheel. The two driving wheels may be connected togetherin any suitable manner so that the two conveyers will travel in unison.The flask, in the present instance, is made of a cope 16, and a drag 17,

and a bottom board 18. The rings of the horizontal conveyer have wheelswhich travel on rails 12 made of angle bars, and the upright portions ofthese angle rails act as guides to hold the rings laterally in position.

13 is the moldin machine, ofany suitable type, and in tliepresentinstance it is located within the loop of the conveyer S. Theflasks are filled by the use of this molding machine and placed in therings to be carried to the pouring point, as indicated in the presentinstance by the ladle 14; Fig. 2, and by the dotted circle,'Fig. 1.

In order to properly hold the sand within the mold during the pouringoperation, weights are provided which rest directly upon the sand in themold and in each weight is an opening directly in line with the pouringopening of the mold so that when the conveyer reaches the ladle and isstopped, the opening in the weight and the pouring opening will alinewith the mouth of the ladle and the metal can be properly poured in themold; the weight preventing the upward displacement of the sand duringthe pouring operation and insuring accuracy in the casting. After themetal has been poured. the weight is removed from the sand and when themetal has set snflicienfly the sand, with the casting, is dischargedfrom the mold into'the screened ho )per 15; the flask being returned tothe molt ing machine.

Certain of the above described mechanism is illustrated and claimed inan application for patent filed by John V, Brown. Jr.,

Serial No. 559,291, filed May 4, 1910.

my invention I provide a series of flask weights which are placed, bysuitable mcans,'on the sand of the mold; and these flask weights are,carried by the conveyer past the pouring point and then lifted off ofthe moldon to a weight conveyer, which returns the weights to theoriginal point, where they are again placed on the sand within a flask.

It will be understood that the flask carrying mechanism is movedintermittently so as to allow for the pouring of the metal into the moldand while the mechanism is at rest a weight is placed on the sand in theflask in advance of the pouring point; while another weight is removedfrom a flask after the flask has reached a given point.

19 is an endless belt conveyer, which is located at one side ofthecarrying run of the conveyer 1, as clearly shown in Figs. 3 and 4, andthis conveyer consists of a series of carriages 20, having wheels 21,which are mounted on rails 22 and these carriages are connected by links23 and are adapted to carry independent and unattached weights 24. Theconveyer 19 passes around sprocket wheels 55. One of these sprocketwheels is the driven wheel and in some instances the conveyer 19 may bedriven from the shaft of the conveyer- 1,

as clearly illustrated in Fig. 2. The gearing can be 'such that whilethe-flasks travel in one direction the weight conveyor travels in theopposite direction and ate speed so as to bring the several carriages ofthe weight conveyer into proper alinement with the flasks of the mainconveyer. The flask weights '24 are preferably made, as illustrated' inFig. 6, with a pouring opening 25 and wings 26, by which they areengaged by the placing mechanism, but it will be understood that theform of the weights may be modified as their shape will depend upon themechanism by which they are handled.

The mechanism for handling the weights is made in the following manner:27 are rails on which is mounted a carriage 29.

enters the slot in the extension 51.

The carriage is held in proper position by upper rails 28 and the wheels30 of the carriage are located between these two sets of rails. 31 is acylinder in which is a piston having a piston rod 32, which is connectedto the rear end of the carriage 29. 33 is a valve, which controls theadmission and exhaust of fluid to and from the cylinder. This valve isconnected to a fluid pipe 34 and is also connected to the cylinders byflexible pipes 35 and 36, as the valve, in this instance, is located onthe carriage 29. This valve is actuated bya cam 37 on a cam shaft 38,mounted in bearings on the carriage 29. The lever 39, pivoted at 40, hasa roller which travels in the groove of the cam and this lever is forkedat its upper end and engages an arm 41 on the valve stem so that, as thecam is rotated, the valve will be turned to admit fluid to either end ofthe cylinder or to exhaust therefrom in order to reciprocate thecarriage 29. The shaft 38, in the presentinstance, is geared to a maindriving shaft 42, mounted in outside bearings, and on the shaft 38 is agear wheel 43, which is geared ton gear wheel 44,"on the shaft 42,through an intermediate gear wheel 45, carried by links 46, hung on thetwo shafts 38an'd 42, so that the carriage is free to move Withoutdisarranging the driving mechanism. 'The shaft- 42 can be so geared tothe pouring mechanism of the conveyers that the carriage will move intime with the pouring mechanism of the conveyers and a weight can beplaced on the sand in the flask at the proper time and another weightremoved from the flask until all the metal has been poured. 47 and 48are two pairs of arms pivoted at one end to the carriage and at theopposite end to a frame 49'having two arms 50, which engage the flaskweight 24 and move it from one position to another. One of the arms 47has a slotted extension '51 and adapted toslide in bearings on thecarriage 29 is a bar 52 having a pin which This bar 52 is reciprocat'edin its bearings by a cam 53, through the medium of a lever 54. One armof this lever is a roller, which travels in the end of the cam, whilethe other an: is forked and ext-gages a pin on the bar so that the:iCi'itidl is as follows:

\Vhen the parts are'in the position illustrated in Figs. 3 and 4, theweight transferring mechanism is clear of the' weights and the conveyersare free to move and when they have moved to the position illus tratedin Fig. 3, where the weight 24 is opposite to the flask 16, the cams arein such position as to first actuate the valve so that the carriage 29will move toward the. conveyer 19 and the arms 50 of the frame 49 willpass under the wings 26 of the weight 2%, after which the cam 53'; willmove the rod 5'2 so as to cause the litia'ullei arms i7 and to to turnon their pivots and move the frame 49 forward. which movement will causethe arms of the frame to engage and lift the weight from the conveyerl2) and place it on the sand in the flask 18, as the arms will firstraise the weight and then as the arms *7 and *8 pass over their centersthe frame will be lowered to such position that the weight will restupon the sand and the arms will clear the wings of the weight, afterwhich the valve will be moved to a position to retract the carriage andwhen the aims 50 clear the wings of the weight, the cam 53 will returnthe frame T9 to its origi Hill position, as indicated in Fig. l. hen thecoineyers are again moved the weight is carried with the flask andanother weight is broughtin line with the above described mechanism.This mechanism is indicated at A, Fig. 1, and is for the purpose ofplacing a weight on the sand of the flask before the metal is pouredinto the mold and a duplicate of this mechanism is indicated at- B, Fig.1, for removing the weight from the sand of the flask after the metal ispoured. In this latter mechanism the weights are so shaped that theaction of the parts is such that when the conveyers are at rest themechanism will lift a weight from the sand of the flask and will depositit upon the weight conveyer l9 and as this conveyor travels in a I'QM?direction from the flask conveyer, as inn rated by arrows, Fig. 1, thisweight will be eventually returned to the mechanism A (Fig. 1), whichwill place the weight upon the sand of another flask.

Thus it will be seen by the above dc scribed mechanism that while theflask conveyer is at rest and while the metal is being poured into amold a weight is removed from the weight conveyer and placed in positionon the sand in one of the flasks and at the same timea weight is removedfrom the sand of a flask, which has been poured and placed on the weightconveyer, so that the weights are repeatedly used as the operationprogresses.

'hile I have illustrated a flask conveyer for r turning the flasks tothe mechanism for placing the flasks on the sand of the molds, it. willbe understood that this conveyer may be dispensed with and the flasksreturned by hand, or another type 'of conveyer from that shown in thedrawings may be employed for returning the flasks to the first position.

I claim:

1. The combination in a casting, apparatus, of a series of flasks; meansfor conveying said flasks; independentand unattached weights for theflasks; mechanism for placing said weights on the sand of the flasksbefore pouring, and mechanism for removing the weights from the flasksafter pouring.

2. The combination in a casing apparatus. of a fiaskconvever: a weightconve ver: weights adapted to be placed upon the sand in the flask;means for transferring a weight from the weight conveyer to the flaskconveyer; and means for transferring a weight after the metal has beenpoured into the flask from the flask to the weight conveyer.

3. The combination ilra casting apparatus, of a series of flasks;mechanism for conveying the flas ts; weights adapted to be located onthe sand of the flasks; a carriage at one side of the casting apparatushaving arms arranged to engagethe weights; and mechanism for moving thecarriage and actuating the arms, whereby a weight is engaged and placedupon. or removed. from the sand in theflask.

i. The combination in a casting apparatus, of a series of flas ts; withmeans for conveying the flasks; a weight adapted tor'be located on thesand of a flask; a carriage at one side of the apparatus; arms on thecar riage; means for reciprocating the carriage; and means for liftingthe arms. whereby said arms will engage a weight, lifting and moving itinto and out of position.

'5. The combination in a casting apparatus, of a series of flasks; aconveyer carrying the flasks: independent weights ar ranged to belocated on the sand of a flask; a carriage at one side of the conveyer;means for reciprocating the carriage: two sets of arms adapted to thecarriage; a frame on said arms; said frame having arms for engaging aweight; with a cam for moving the frame-carrying arms; and means forcontrolling the movement of the carriage. whereby a weight can be liftedinto or out of position in respect to the sand of the flask.

G. The combination in a casting apparatus, of a series of flasks; anintermittently moving conveyer carrying the flasks in one direction; aseries of independent weights;

' a conveyer for carrying said weights; means for moving the weightconveyer in a direction opposite to the direction of movementof theflask conveyer; means for transferring a weight from the weight conveyerand for placing it on the sand in a flask; and means for removing theweight from the sand in the flask, after the pouring operation, andtransferring itonto the weight conveyer.

7. The combination in a casting apparatus, of a flask conveyer; a seriesof flasks carried thereby; means for intermittently moving the flaskconveyor; a series of inde'- pendent, weights; a weight conveyer locatedat one side of the flask conveyer; means for moving the weight conveyorin a direction opposite to that of the flask conveyer; each 1 name tothis specifice'f "i, in the presence of of said weights having wings;with mechal two subscribing witner. nism having arms arranged to engagethe i 7 g N Wings whereby a Weight can be lifted from f HALE AbBI 5 theweight conveyer and properly located 'itnesses:

on the sand of the flask conveyer. M. E. Sucre,

In testimony whereof, I have signed my WM. A. BARR.

